Use of hard-coded credentials in SonicWall On-premise Email Security (ES) and SonicWall Hosted Email Security (HES) - CVE-2021-20025
Published: May 13, 2021
Vulnerability identifier: #VU53230
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-20025
CWE-ID: CWE-798
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain full access to vulnerable system.
The vulnerability exists due to presence of hard-coded credentials in application code, a default username and a password are used at initial setup. A remote unauthenticated attacker can access the Virtual Appliance using the default credentials only when the device is freshly installed and not connected to Mysonicwall.
Affected software
SonicWall On-premise Email Security (ES)
SonicWall Hosted Email Security (HES)
SonicWall Hosted Email Security (HES)
How to mitigate CVE-2021-20025
Install updates from vendor's website.
SonicWall On-premise Email Security (ES) - update to 10.0.10
SonicWall Hosted Email Security (HES) - update to 10.0.10
SonicWall Hosted Email Security (HES) - update to 10.0.10